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/*

 * @test

 * @bug 8005933

 * @summary Test that -Xshare:auto uses CDS when explicitly specified with -server.

 * @library /test/lib

 * @modules java.base/jdk.internal.misc

 *          java.management

 * @run main XShareAuto

 */

import jdk.test.lib.Platform;

import jdk.test.lib.process.ProcessTools;

import jdk.test.lib.process.OutputAnalyzer;

public class XShareAuto {

    public static void main(String[] args) throws Exception {

        ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(

            "-server", "-XX:+UnlockDiagnosticVMOptions",

            "-XX:SharedArchiveFile=./XShareAuto.jsa", "-Xshare:dump");

        OutputAnalyzer output = new OutputAnalyzer(pb.start());

        output.shouldContain("Loading classes to share");

        output.shouldHaveExitValue(0);

        pb = ProcessTools.createJavaProcessBuilder(

            "-server", "-XX:+UnlockDiagnosticVMOptions",

            "-XX:SharedArchiveFile=./XShareAuto.jsa", "-version");

        output = new OutputAnalyzer(pb.start());

        String outputString = output.getOutput();

        // We asked for server but it could be aliased to something else

        if (outputString.contains("Server VM") && !outputString.contains("emulated-client")) {

            // In server case we don't expect to see sharing flag

            output.shouldNotContain("sharing");

            output.shouldHaveExitValue(0);

        }

        else {

            System.out.println("Skipping test - no Server VM available");

            return;

        }

        pb = ProcessTools.createJavaProcessBuilder(

            "-server", "-Xshare:auto", "-XX:+UnlockDiagnosticVMOptions",

        output = new OutputAnalyzer(pb.start());

        try {

            output.shouldContain("sharing");

        } catch (RuntimeException e) {

            // if sharing failed due to ASLR or similar reasons,

            // check whether sharing was attempted at all (UseSharedSpaces)

            output.shouldContain("UseSharedSpaces:");

            output.shouldNotContain("Unable to map %s");

        }

        output.shouldHaveExitValue(0);

    }

}